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Product Detailed Parameters
- Description：13.5695 MHz XO 1.8V 2.0X1.6MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：13.5695 MHz
- Function：Standby (Power Down)
- Output：LVCMOS
- Voltage - Supply：1.8V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 85°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：22mA
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.079" L x 0.063" W (2.00mm x 1.60mm)
- Height - Seated (Max)：0.031" (0.80mm)
- Supplier Device Package：-
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Overview
The 18QHTF21-13.5695-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.5695 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features a power-down function for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for precision timing applications requiring low voltage operation.
Feature Summary
- Supports power-down functionality via standby control pin
- Utilizes LVCMOS output logic for digital interface compatibility
- Operates on a single 1.8V supply voltage rail
Applications
- Battery-powered portable electronic devices
- Digital signal processing timing circuits
- Communication equipment clock sources
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 4-SMD no-lead package footprint matches the PCB layout constraints. Ensure the manufacturing source is recognized as Mercury Electronics Ind. Co. Ltd to guarantee component authenticity and performance consistency.
Selection Notes
Select this model when a 13.5695 MHz reference clock is required for systems operating at 1.8V. Consider the small 2.0x1.6mm form factor for space-constrained designs. Evaluate the need for power-down capabilities if energy efficiency during idle states is a critical system requirement.
Part Context
This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequency options within a standardized low-profile package. These components are engineered for high stability and reliability in consumer electronics and industrial timing applications.
Replacement Considerations
Direct substitutes include other 13.5695 MHz XO models with identical 1.8V LVCMOS specifications and 4-SMD no-lead footprints. Verify pinout compatibility and thermal characteristics when considering alternative manufacturers.
